RedHat: RHSA-2021-2299:01 Important: microcode_ctl security,
Summary
The microcode_ctl packages provide microcode updates for Intel.
Security Fix(es):
* hw: vt-d related privilege escalation (CVE-2020-24489)
* hw: improper isolation of shared resources in some Intel Processors(CVE-2020-24511)
* hw: observable timing discrepancy in some Intel Processors(CVE-2020-24512)
* hw: information disclosure on some Intel Atom processors (CVE-2020-24513)
Bug Fix(es) and Enhancement(s):
* Update Intel CPU microcode to microcode-20210525 release
* Do not use "grep -q" in a pipe in check_caveats.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2020-24489 https://access.redhat.com/security/cve/CVE-2020-24511 https://access.redhat.com/security/cve/CVE-2020-24512 https://access.redhat.com/security/cve/CVE-2020-24513 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Server (v. 6 ELS):
Source:
microcode_ctl-1.17-33.33.el6_10.src.rpm
i386:
microcode_ctl-1.17-33.33.el6_10.i686.rpm
microcode_ctl-debuginfo-1.17-33.33.el6_10.i686.rpm
x86_64:
microcode_ctl-1.17-33.33.el6_10.x86_64.rpm
microcode_ctl-debuginfo-1.17-33.33.el6_10.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for microcode_ctl is now available for Red Hat Enterprise Linux6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux Server (v. 6 ELS) - i386, x86_64
Bugs Fixed
1962650 - CVE-2020-24489 hw: vt-d related privilege escalation
1962666 - CVE-2020-24513 hw: information disclosure on some Intel Atom processors1962702 - CVE-2020-24511 hw: improper isolation of shared resources in some Intel Processors1962722 - CVE-2020-24512 hw: observable timing discrepancy in some Intel Processors